The Installer app for the iPhone will enable your device to have access to a whole slew of different apps that are not available through the Apple App Store. The best thing about Installer is that the majority of the apps for the iPhone 3G are free, and if you are wondering about the legality of the process, rest assured that it is completely legal.
Instructions
1. Download the program from the Resources section below. It is available in both PC and Mac format. Plug your iPhone into your computer and exit iTunes if it automatically appears.
2. Open the program that you just downloaded by double-clicking the downloaded file. You will be presented with the program's home menu, which has a large button on it that is named Make it Ra1n. Push this button with your iPhone plugged into the computer.
3. Wait as your iPhone is updated with the latest Installer program. Your iPhone will reboot once during this process, but do not unplug it from your computer as it will harm it. When the process is completed you will see your iPhone's home screen.
4. Search the iPhone home screen for the Installer icon, which is blue. Select it and go ahead installing all your favorite third-party apps.
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